Ferroli F24 Installation, Service And User Instructions Manual page 31

7.01 Initial procedure
a) Ensure the boiler is cold, electricity supply is isolated, and the gas supply is turned off at the
inlet of the boiler
b) For replacement of parts where water connections are broken, it will be necessary to isolate and drain either
or both the central heating or domestic hot water circuits of the boiler only. The cold water mains inlet is
isolated at the inlet cock. The D.H.W. is drained by opening a hot tap.
The C.H. fl ow and return cocks are turned off at the isolation cocks. The C.H. is drained via the pressure
relief valve (twist about 1/3 of a turn).
c) Remove components following special notice below and replace in reverse order.
d) Ensure water and gas washers are in good condition.
7.0 inal procedure
Re open cocks and re charge the system to about 1 bar, and vent boiler and radiators.
Re charge to 1 bar if necessary.
pon completion of the work the following. hould be checked
) as soundness of all oints
) Water soundness of all oints
) The electricity supply.
) The pressure of the sealed system and top up where necessary.
7.0 o lo er t e control panel ( g. 31)
Remove the two xing screw ( g. 31) "A"
Rotate down the front panel "C"
7.0 e o e and re pre uri in
e el ( g. 3 )
Refer to 7.01 a, b
solate electricity and water supplies
Remove outer case (two screws bottom
rear corners)
Loosen the "A" connections to expansion vessel
Remove "B" screw
Remove the expansion vessel
Re assemble in reverse order
Re pressure expansion vessel
(charge pressure 0,8 1 bar) through the valve "C"
Ensure pressure relief value is open
(twist about 1/ of a turn) when repressurizing
o . . e pan ion
A
Fig. 31
A
Fig. 3
31